I would like the ability to toggle following the end of the plot without having to use the "Change Data Samples" dialog to change the data range. This would keep the newest data sample at the right side of the plot.

Often it is useful to show the plot scrolling in realtime and I currently do this by constraining the data range to a number of samples from the end. However, I would also like to be able to zoom out and see the entire data range without having to reload the entire file. Currently I need to open "Change Data Samples" dialog and change from "Count from end" to "Read to end" and this can take quite a bit of time depending on the size of the file.